The ” free ” games don’t delete if your membership ends , the licese that lets you play them ends so they just can’t be played unless you renew the plus membership

the data is still on the hard drive until you renew plus or delete the game yourself

if you read the user agreement for plus it will tell you all of the rules and how it works , always read the user agreement because it not only spells out how it works but it tells you what it costs and if you are obligated to anything and whether they charge you if you don’t cancel by a certain date